| So void is unaltered. I used the Zem to take some fuel out of the affected rpm range but the difference was minimal. Closed loop is already pretty lean so I didn't like the idea of taking more fuel out. This problem did not exist before the rebuild with the same injectors & running Ashs Zem program. The only two possibilties I could think of were a boost leak or a leaking "O" ring but the workshop disagreed. Both these faults would have meant negligence on their part ?????? If I rule out my two suggestions it doesn't make any sense to me why the engine is running so badly.
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